JOURNAL OF ELECTRONIC MATERIALS
·
2026
·
IF 2.8
Zhang Fan,Zhang Jinshun,Li Xu,Wang Qingji
Polyaniline (PANI) is regarded as a prospective sensing material for room-temperature NH 3 detection owing to its high sensitivity and selectivity. In this study, WO 3 nanoflowers were prepared via a simple chemical bath deposition method, and PANI/WO 3 heterojunctions were subsequently fabricated through an in situ polymerization process. To evaluate the contribution of the heterojunction to gas-sensing performance, four sensors with different composite ratios were constructed. Among them, the optimized PW1-2 sensor exhibits a response of 3.8–100 ppm NH 3 at room temperature, which is 1.6 times higher than that of pure PANI. Notably, it achieves an ultrafast response time of only 26 s, representing an 8.8-fold improvement over pure PANI (230 s), along with near-complete desorption capability. Furthermore, PW1-2 demonstrates excellent humidity resistance, with stable responses ranging from 3.7 to 3.97 under 40–80% relative humidity. Comprehensive characterization by x-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy TEM, x-ray photoelectron spectroscopy (XPS), Raman spectroscopy, thermogravimetric analysis (TGA), and Brunauer–Emmett–Teller (BET) analysis reveals that PANI nanofibers uniformly wrap around WO 3 nanoflowers, forming p–n heterojunctions at the interface. XPS analysis shows that PW1-2 possesses the highest protonation degree (51.88%), which correlates with its superior sensing performance. Unlike conventional PANI/WO 3 composites, the enhanced performance is not primarily attributed to specific surface area or porosity but rather to the synergistic effect of morphological characteristics and heterojunction formation. Compared with previously reported PANI/WO 3 sensors, our PW1-2 sensor offers significantly faster response, better humidity tolerance, and complete desorption. This work provides a promising strategy for designing high-performance, humidity-resistant room-temperature NH 3 sensors. Graphical
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2026
·Vol. 37
·期 20
·1562
·
IF 3.2
Guo Sijia,Qin Jianguo,Liu Xiangdong,Yang Chuanhua,Song Baisen,Zhu Yongchang,Li Zizhou
Lightweight broadband microwave absorbers with strong attenuation remain challenging because efficient absorption requires balanced impedance matching and electromagnetic loss over a wide frequency range. Herein, hierarchical core–shell BCN@CoNi@PANI (BCNPa) composites were rationally designed by integrating BCN, CoNi alloy, and conductive PANI. BCN serves as a lightweight dielectric substrate, CoNi provides magnetic loss, and the outer PANI shell regulates dielectric response and conductive loss. The electromagnetic properties of BCNPa can be effectively tuned by adjusting the PANI content. The excellent absorption performance over 2–18 GHz originates from the synergistic effects of impedance matching, dielectric loss, magnetic loss, and hierarchical structural attenuation. Dielectric loss is mainly related to defect-induced dipole polarization, interface-related polarization relaxation, and conductive loss from the π-conjugated PANI shell, while magnetic loss arises from natural resonance, exchange resonance, and eddy current loss of CoNi. Benefiting from optimized dielectric–magnetic balance, BCNPa-2 achieves ultralow minimum reflection loss ( RL min ) of − 81.4 dB at 14.12 GHz and an ultrabroad effective absorption bandwidth ( EAB ) covering nearly the entire measured range. This work provides an effective strategy for high-performance broadband microwave absorbers.
✓ 已验证
产品关联
DOI
高影响因子
Separations
·
2026
·Vol. 13
·期 8
·232
·
IF 3.5
Chuyue Zhang,Le Duan,Xu Wang,Lanlan Qiu,Deli Xiao
Reversed-phase chromatography stationary phases (such as C18) are widely used in commercial high-performance liquid chromatography (HPLC). However, when dealing with complex mixtures, they often exhibit limited separation capabilities and peak tailing phenomena. To address this problem, two novel HPLC stationary phases based on polyamine macrocycles were developed. A trianglamine macrocyclic stationary phase (TRI-Sil) was first prepared using chlorinated silica gel as the support, which can effectively separate a variety of aromatic compounds, but with limited selectivity for positional isomers such as phenylenediamine. To further improve the separation selectivity, a polyamine-silica macrocyclic stationary phase (CPAM-Sil) was synthesized by introducing a branched-chain-containing monomer. Under optimized conditions, CPAM-Sil achieved baseline separation of phenylenediamine and phenylenediol positional isomers and improved the separation of terphenyl isomers, with favorable asymmetry factors and high column efficiency compared with the commercial C18 column. Molecular docking confirmed multiple interactions such as electrostatic interactions and hydrogen bonding between the polyamine macrocycle (CPAM) and analytes. The CPAM-Sil column also exhibited good reproducibility and stability, showing promising potential for industrial application in chromatographic separation.
✓ 已验证
产品关联
DOI
高影响因子
POLYMER
·
2026
·
IF 5.1
Rui Ren,Xianxian Gong,Han Zhang,Yingying Wang,Bijin Xiong,Eunji Lee,Jintao Zhu
Plasmonic superlattice monolayers (SMs) hold great promise for biosensing and information encryption due to their unique localized surface plasmon resonance (LSPR) properties, yet their practical patterning remains challenging owing to the lack of facile and scalable methods. Here, we present a synergistic strategy combining mask-assisted plasma etching with in situ ligand growth to construct stimuli-responsive anti-counterfeiting patterns on two-dimensional ordered arrays of gold nanoparticles (AuNPs). By tuning the molecular weight of polystyrene ligands, the interparticle spacing is continuously adjusted from 20.1 to 34.3 nm. After 12 h of in situ polymerization, a 65 nm polyaniline (PANI) layer is selectively deposited on the etched regions, while negligible growth occurs on the unetched domains, yielding high-contrast patterning. Leveraging the reversible transitions of PANI among its emeraldine salt, leucoemeraldine, and pernigraniline states, the film exhibits excellent pH- and electro-responsive performance. Upon pH switching from 2 to 12, the LSPR peak redshifts by 27 nm with full reversibility over 10 cycles, accompanied by a green-to-blue color change. The resulting patterned films exhibit tunable LSPR behavior, allowing effective encoding and concealment of information through ligand-responsive optical switching. The proposed plasma etching-based strategy offers a versatile route for surface patterning of nanoparticle superlattices. By integrating plasma etching, in situ ligand growth, and responsive polymer-functionalized SM films, this work establishes a robust platform for secure information encryption and paves the way for advanced stimuli-responsive optical materials and devices.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Junren Zhu,Juanjuan Zou,Ting Peng,Xinyi Li,Chaohan Jiang,Shiyang Bai,Wei Ding,Zhenzhen Jiang
HCO 3 − coordination-enabled high-valent cobalt-oxo pathway absent without HCO 3 − • Quantitative Co(IV) contribution elevation from 2.5% to 28% with bicarbonate • Oxidation pathway switch from radical to non-radical regime by bicarbonate • CoCO 3 SO 3 2− complex identified as kinetically competent intermediate • Efficient performance across real waters with Co dosage below discharge limit Bicarbonate, a ubiquitous constituent of natural waters, is typically regarded as a radical scavenger in sulfate-radical-based advanced oxidation processes (SR-AOPs); however, its coordinative interaction with the catalytic metal center and the consequent modulation of oxidative pathways remain poorly understood. In this work, the role of HCO 3 − in the Co(II)-catalyzed activation of calcium sulfite (CaSO 3 ) was systematically investigated. HCO 3 − species is identified to coordinate with Co(II) to assemble a ternary Co(II) − HCO 3 − −S(IV) complex that facilitates the rate-limiting Co(II)-to-Co(III) oxidation, while the subsequent Co(III) − HCO 3 − complexation prevents Co(III) precipitation and sustains the catalytic cycle. Critically, this coordination is a prerequisite for Co(IV) generation: by depressing the Co(IV)/Co(II) redox potential, it unlocks the otherwise forbidden oxygen-atom transfer pathway, yielding a non-radical oxidant entirely absent without HCO 3 − . Together with 1 O 2 , this HCO 3 − -exclusive Co(IV) pathway operates in parallel with the SO 4 •− radical pathway, redirecting the dominant oxidation mechanism from a radical-driven regime toward a non-radical-driven regime, accompanied by a pronounced reduction in apparent activation energy (37.46 kJ mol −1 ). This system functions effectively across a wide pH, exhibits high tolerance to common anionic interferents, and achieves efficient performance across multiple authentic water matrices. In short, this work establishes HCO 3 − as a coordination-directed switch that sustains the catalytic cycle while uniquely gating access to the Co(IV) oxidation pathway, offering a ligand-engineering strategy for tuning reactive species speciation in S(IV)-based AOPs. The HCO 3 − enhanced- and altered- CaSO3 activation by Co(II). Download: Download high-res image (301KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
ANALYTICA CHIMICA ACTA
·
2026
·
IF 6.1
Qiushu Du,Peipei Wang,Zhen Song,Xiliang Luo,Shaoping Lv
Electrochemical biosensors often suffer from biofouling in complex biological samples, which compromises detection accuracy and limits their practical applicability. To address this problem, we developed a synergistic antifouling biosensor by integrating the bovine serum albumin hydrogel (BSAG) with a designed multifunctional peptide for the detection of cardiac troponin I (cTnI) in complex biofluids. A stable and versatile antifouling layer was constructed via a facile one-step crosslinking method based on bovine serum albumin (BSA), and the amino-enriched surface of BSA enabled the secondary grafting of a multifunctional peptide that combines with anchoring, antifouling, and recognition properties. This approach not only enhanced the antifouling performance and durability of the coating, but also avoided potential interference associated with the introduction of exogenous recognition molecules. The cooperative antifouling performance of this hierarchical interface was systematically validated through electrochemical measurements and fluorescence imaging, demonstrating excellent resistance to biofouling in various biological fluids. The fabricated biosensor possessed long-term stability, high sensitivity and a broad linear response was obtained within the range of 0.1 pg mL −1 - 100 ng mL −1 , accompanied by a low detection limit of 0.042 pg mL −1 . Overall, this study presents a robust and generalizable interface engineering strategy that significantly enhances biosensor antifouling performance and analytical reliability, highlighting its strong potential for clinical monitoring in complex biological environments.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Yongxue Chen,Xiaodong Lu,Jianping Ge
PC coatings with structural colors are fabricated by embedding method through cooperative DSDV process. • Different from traditional strategies, the embedding method adopts a new “coating before assembly” strategy. • Conformal PC coatings are prepared on 33 substrates, including boards, fabrics, inorganics, metals, plastics, and rubbers. • The embedding method works for the polystyrene-arylate, alkyd, polyurethane, and polyvinyl alcohol-based PC coatings. Colloidal photonic crystal (PC) coating has wide application in automotive manufacturing, textile dyeing, packaging and printing, cosmetics and personal care, and anti-counterfeiting materials. However, the traditional methods based on strategies of “coating after assembly” and “coating along with assembly” show poor compatibility with the substrates and polymer components. Here, a new method based on the embedding of colloidal crystals into the precoated polymer layer was developed to prepare durable PC coatings with bright and uniform structural colors. This embedding method pioneers a new synthetic strategy, which is “coating before assembly”. The coating formation is proved to follow the DSDV mechanism, which refers to the cooperative “polymer dissolution”, “liquid photonic crystal (LPC) sinking”, “polymer diffusion”, and “solvent volatilization” processes. The embedding method successfully produces conformal SiO 2 /(PS-PMMA) PC coatings with fine surface features on 33 substrates, including fibrous boards, fabrics, inorganics, metals, plastics, and rubbers, and it also works for the fabrication of alkyd resin, polyurethane, and polyvinyl alcohol-based PC coatings, which will accelerate its practical implementation in various scenarios. An embedding method following the “Coating before Assembly” strategy is developed to prepare durable PC coatings with bright and uniform structural colors. This method yields conformal coatings on diverse substrates, including fibrous boards, fabrics, inorganic materials, metals, plastics, and rubbers. Additionally, it is applicable to coatings based on acrylic resin, alkyd resin, polyurethane, and polyvinyl alcohol. Download: Download high-res image (100KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
Advanced Science
·
2026
·
IF 14.1
Songrui Liu,Bowen Yang,Cao Qi,Zhijie Zhou,Haochen Zou,Anjum Qureshi,Xiao Zhao,Ting Li,Li Gao,Ye Tao,Gang Song,Pingqiang Cai,Zheng Li,Zhiyuan Liu,Dianpeng Qi,Ting Wang,Lianhui Wang
Adaptive bioelectronics that autonomously adjust to environmental changes represent an emerging paradigm, enabling reliable operation across diverse conditions. Hypoxic microenvironments are prevalent across numerous pathological conditions including chronic wounds, tumors, and ischemic tissues, creating a fundamental challenge: oxygen-dependent enzymatic biosensors fail precisely when monitoring is most critical, while oxygen deficiency simultaneously impairs tissue regeneration. We present a soft wireless Hypoxia-Adaptive Sensing and Therapeutic (HAST) system that maintains reliable biosensing functionality in oxygen-deficient environments through integrated oxygen management. Using engineered poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS)/polydopamine (PDA)/enzyme biocomposites, HAST integrates multiplexed biosensing (glucose, uric acid, lactate) with dual-oxygen provision: wound exudate-triggered dissolved oxygen generation restores biosensor functionality while electrical stimulation promotes vascular regeneration for sustained tissue oxygenation. This hypoxia-adaptive design achieves about 10-fold biosensor sensitivity enhancement under oxygen-deficient conditions while promoting tissue repair. In preclinical diabetic wound models, HAST enabled accurate continuous monitoring with ∼30% accelerated wound closure, demonstrating environment-adaptive bioelectronics for precision medicine in oxygen-deficient pathological conditions.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Xuan Zhang,Bo Wang,Zhi Hu,Shucheng Liu
Microcapsule materials with selective mass transfer and mechanical stability are considered one of the potential adsorbents in the field of natural active molecules separation. Herein, a new kind of porous boronic acid affinity imprinted covalent organic framework (COFs) microcapsules (DR-MC@PDA@MIPs) via W/O type Pickering emulsion interface polymerization were fabricated for adsorption of naringin (NRG). During the emulsion interface assembly process, the dopamine-modified COF particles (BTCA-COFs@PDA) were stabilized at the water/oil phase interface, followed by the catalytic growth of COFs shell layers via multi-phase emulsion interface. For improve the specific adsorption amounts, the dendritic initiator (Y-Shape-(Br) 2 ) were modified onto the surface of COFs based MC. Ultimately, the DR-MC@PDA@MIPs were fabricated through atom transfer radical polymerization (ATRP). The prepared DR-MC@PDA@MIPs exhibited high enrichment amounts and good NRG selectivity under neutral conditions, with a rapid adsorption equilibrium rate (120 min) and an adsorption capacity for NRG (72.32 μmol/g). Furthermore, DR-MC@PDA@MIPs showed a higher imprinting factor (3.126) compared to non-imprinted adsorbents (DR-MC@PDA@NIPs). After seven separation cycles, the obtained DR-MC@PDA@MIPs exhibited good reusability, with an adsorption capacity of 92.38% of the first adsorption-elution cycle. The DR-MC@PDA@MIPs selectively purified crude NRG products to 94.51%. Therefore, this work provides a new boronic acid affinity COFs MC imprinted MC in the specific separation of targeted flavonoid molecules, overcoming some limitations of traditional microcapsule adsorbents and advancing further research and applications in the selective separation field.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Yunjie Guo,Liu Yang,Dongwei Zhou,Yingjun Chen,Weibin Guo,Chongyang Zhou,Naien Shi,Min Han,Dong-Liang Peng,Qingshui Xie
As one class of important functional materials, lithium-rich layered oxides (LLO) are considered as promising cathodes for advanced Li-ion batteries due to their high theoretical specific capacity. Nonetheless, their practical applications are greatly hindered by the inferior rate capability and pronounced capacity and voltage decay under cycling conditions. In this work, the aniline is innovatively employed as an additive to fabricate LLO by controllable annealing treatment of the sol-gel precursor under an air atmosphere. Both experimental and theoretical analyses reveal that the introduction of aniline induces oxygen vacancies, effectively suppresses Li + /Ni 2+ cation mixing, consequently mitigating lattice oxygen release, enhancing Li + diffusion kinetics, and stabilizing the crystal structure. Consequently, the optimized aniline-modified sample (AMS-1) delivers high specific capacity and superior rate performance. Notably, ASM-1 can preserve 84.9% of its capacity after 400 cycles at 0.5C, exhibiting an average discharge voltage fade of merely 1.27 mV per cycle. This work offers a facile small-molecule-induced dual-functional integration strategy to elevate the cycling stability of LLO, which benefits from spurring the development of high-performance Li-rich cathode materials and advanced energy storage systems.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Energy Storage
·
2026
·
IF 10.7
Xinru Pan,Yunzhen Chang,Sheng Zhu,Shujie Liu,Jieru Yang,Gaoyi Han
Ti 3 C 2 T x (TC) shows fascinating application prospects in energy storage field, but its practical applications are limited by the self-stacking and its susceptibility to oxidation. Herein, Ni 2+ /aniline co-intercalated Ti 3 C 2 T x (TC-NA) is prepared by intercalating Ni 2+ /aniline into Ti 3 C 2 T x through a simple ultrasonic and filtration process. On one hand, introducing Ni 2+ and aniline into Ti 3 C 2 T x induces self-assembly of Ti 3 C 2 T x to form 3D-like porous network structure, expanded interlayer spacing and increased electrochemical active sites, which are beneficial to improve its electrochemical performance. On the other hand, the interaction between Ni 2+ and terminal groups of Ti 3 C 2 T x , as well as interaction between aniline and Ti 3 C 2 T x help to passivate Ti 3 C 2 T x to improve the electrochemical stability. At scan rate of 2 mV s −1 , the TC-NA achieves a specific capacitance of 217.6 F g −1 in 1 M H 2 SO 4 employing two-electrode system, and retain 83.5% of its initial capacitance after 10,000 cycles at current density of 5 A g −1 , which is significantly superior to TC (48.8%). Furthermore, after being stored for 470 days, the TC-NA can still retain 67.3% of its initial capacitance after 7000 cycles (TC only 28.1%). This work provides a new idea for improving the electrochemical performance, especially cycling stability of MXene-based materials.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Manli Wang,Zhicheng Liu,Ming Hou,Xu Luo,Wenbin Yang,Hongjie Zhang,Xiaoming Song,Zhigang Shao
The irreversible degradation of platinum-based catalysts caused by strong sulfur dioxide (SO₂) adsorption poses a primary obstacle to the oxygen reduction reaction (ORR), limiting the practical application of proton exchange membrane fuel cells. Herein, we design and synthesize an anti-SO 2 poisoning Pt-based catalyst comprising Pt nanoparticles anchored on a single-atom Ni-N-HCNs support. The obtained catalyst (Pt/Ni-N-HCNs) exhibits exceptional tolerance to SO₂ poisoning, demonstrating a minimal negative shift of only 47.7 mV in the half-wave potential after contamination, compared to the 79.4 mV shift observed for commercial Pt/C. More importantly, Pt/Ni-N-HCNs catalyst demonstrates significantly enhanced ORR performance, with a mass activity of 0.58 A mg Pt −1 and a specific activity of 1.57 mA cm −2 , representing 1.2-fold and 2.7-fold improvements over commercial Pt/C, respectively. Density functional theory (DFT) calculations and XPS results reveal that the strong metal-support interaction (SMSI) induces the downshift of the d-band center of Pt, thereby weakening SO 2 adsorption and facilitating SO 2 removal. Furthermore, the Ni N site in Ni-N-HCNs support exhibits high activity for SO 2 oxidation, promoting the effective removal of SO 2 from adjacent Pt sites. Both effects synergistically enhance the resistance to SO 2 poisoning of the Pt/Ni-N-HCNs catalyst without sacrificing ORR performance. This work provides insights into the design of poison-resistant electrocatalysts and the development of energy conversion systems with high environmental applicability.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）